Bump @rails/actioncable from 7.2.200 to 8.0.0 in /ruby-gem/spec/dummy

Bumps [@rails/actioncable](https://github.com/rails/rails) from 7.2.200 to 8.0.0.
- [Release notes](https://github.com/rails/rails/releases)
- [Commits](https://github.com/rails/rails/commits/v8.0.0)

---
updated-dependencies:
- dependency-name: "@rails/actioncable"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

ruby-gem/spec/dummy/package.json

@@ -20,7 +20,7 @@
     "@babel/preset-react": "^7.26.3",
     "@babel/runtime": "7",
     "@kaspernj/api-maker": "1.0.439",
-    "@rails/actioncable": "^7.2.200",
+    "@rails/actioncable": "^8.0.0",
     "babel-loader": "9",
     "babel-plugin-dynamic-import-node": "^2.3.3",
     "babel-plugin-macros": "^3.1.0",

ruby-gem/spec/dummy/yarn.lock

@@ -1349,10 +1349,10 @@
     "@parcel/watcher-win32-ia32" "2.4.1"
     "@parcel/watcher-win32-x64" "2.4.1"
 
-"@rails/actioncable@^7.2.200":
-  version "7.2.200"
-  resolved "https://registry.yarnpkg.com/@rails/actioncable/-/actioncable-7.2.200.tgz#7f56b3313762dbb85b64490aa33c5f431419aafd"
-  integrity sha512-gVmi3MabEa+Bkatvw0/k1Y3WTidcIf3qNbb9L8qc+AmT2UmkVqUZhJpSLvKmH10twCYIGzn7yySW/lOpg81Duw==
+"@rails/actioncable@^8.0.0":
+  version "8.0.0"
+  resolved "https://registry.yarnpkg.com/@rails/actioncable/-/actioncable-8.0.0.tgz#b12d87d4c2bb152c4445e2c168df93b585068e7c"
+  integrity sha512-9IXyJeaBggOzlD3pF4/yWELdyUWZm/KTyKBRqxNf9laLBXPqxJt3t6fO+X4s0WajMR8cIhzkxvq1gxsXVbn3LA==
 
 "@react-native/normalize-colors@^0.74.1":
   version "0.74.81"